Gin-rib.



No. 775,349. 7 PATENTED NOV. 22, 1904.

L. W. ELLMAN.

GIN RIB.

APPLIOATION FILED MAY 27 1903.

N0 MODEL.

jaw w 45 Fig. 3

UNITED STATES Patented November 22, 1904.

PATENT OFFICE.

LOUIS iV. ELLMAN, OF SAN ANTONIO, TEXAS, ASSIGNOR OF ONE-HALF TO JAMESL. DAVIS, OF SAN ANTONIO, 'IFXAS.

GIN-RIB.

SPECIFICATION forming part of Letters Patent 1&0. 7'75 349, datedNovember 22, 1904.

Application filed May 27, 1903. Serial No. 159,009- (No model).

IO pensive, and eiiicient device of this character which may be quicklyand readilyapplied to the ordinary form of gin and which will acteffectively in the ginning of seed-cotton, long staple cotton, wool, andother material of a fibrous nature without choking or otherwise cloggingthe saws.

.A further object of the invention is to provide a rib the constructionand general arrangement of which is such as to permit the saws torevolve freely between the same, ef-

fectively ginning the cotton without cutting or otherwise injuring thesame.

A still further object is to provide a rib having a hump or projectionformed thereon and 5 so disposed with relation to the saws that anycotton or other material not taken up by the teeth will roll back in thehopper, thereby preventing the gin from choking or clogging.

The invention consists in the construction 3 and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the claims hereto appended, itbeing understood that various changes in form, proportion, and minordetails of construction may be resorted to without departing from thespirit or sacrificing any of the advantages of this invention.

In the accompanyingdrawings, Figure 1 is 4 a transverse section of aroll-box of a cottongin and certain of its appurtenances, showing a ribconstructed in accordance with my invention applied thereto. Fig. 2 is adetail perspective view of one of the ribs detached, and is a transversesectional view on the line 3 3 of Fig. 2.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

1 designates the roll-box, which may be of the ordinary form andconstruction, 2 the feeding-roll, and 3 the gin-saws, revolubly mountedwithin the roll-box in any suitable manner.

The ribs i (any desired number of which may be employed) are formed ofmetal, wood, or other suitable. material, and each consists of a bodyportion, the side walls of which are inclined or beveled, as clearlyshown in Fig. 3 of the drawings, the portion designated by the numeral 5being curved, as shown, and somewhat wider than the rest of the rib, soas to properly space the lower portion of the ribs from the saws topermit the cotton or other material to be fed thereto.

The upper end of the rib A is arranged in a substantially vertical planeabove the gin saws, being provided with a contracted neck 6 and af0rwardly-extending shoulder '7, defining a rearwardly-curved or concaveportion 8, which acts as a guard or deflector and causes the cotton nottaken up by the saws to roll back into the hopper.

The upper end of the rib at is secured to the upper cross-bar 9 by meansof screws, bolts, or similar fastening devices and the lower end thereofto the lower cross-bar 10, the thickened curved portion 5 of the ribextending above the saw-teeth and following the general curve of the sawfor a short distance, as clearly shown in 1, so as to prevent the cottonor heavy mats of lint when reginning discarded or waste cotton fromcoming in contact with the saws and choking or otherwise obstructing thesame.

By forming the rib with an intermediate curve or hump and having saidhump extend above the saw and follow the general curve thereof for ashort distance a relatively small portion of the periphery of the saw isexposed and the cotton will be deflected from contact with the upperportion of said saw, as will be readily understood.

From the foregoing description it will be seen that 1 have provided anexceedingly simple and inexpensive rib capable of being readily attachedto the ordinary cotton-gin and which by reason of its peculiarconstruction Will effectively gin seed-cotton, long staple cotton, andother fibrous material Without choking or otherwise clogging the saws.

Having thus described the invention, What I claim, and desire to secureby Letters Patent, is

1. In a gin, the combination with a saw, of a rib provided With anintermediate outwardlyprojecting curve or hump having a smooth exteriorsurface for contact with the cotton, the Walls of said hump beingthickened and extended above the saw and curved to conform to'theperiphery of the latter to thereby form a deflector for the cotton.

2. In a gin, the combination With a saw, of a rib having its upper endarranged in a sub- LOUIS W. ELLM AN.

Witnesses:

GEORGE E. JOHNSTON, JOHN KINAHAN.

